I didnt get to all the parts because i needed a heat gun and mine broke but i will show the how to repair by text.
Step one.
Remove the tailgate cover and put your window all the way up.
You then need a 10mm wrench to remove the two set screw to get this piece
Once this is removed you will need to take out the set screw that holds the switch to the lock cylinder
shown here is i had already removed the set screw to show it better.
then you can remove the two screws that hold the switch in place.
Once this is done the switch can be pulled away from the lock cylinder and the black plastic trim can be set aside.
Next if your lock cylinder will not turn you should soak it in a solution of 3 ounces PB blaster and 3 Ounces common paint thinner.
Ok so you will have two parts now, you will need a can of electric contact cleaner. You should spray the contact cleaner inside of the switch unit by using the small hole on the side or the switch cylinder rotating assembly pictured below.
be very liberal with the spray! next use a standard flat head screw driver to rotate the switch back and forth and back and forth and repeat this till the contact cleaner is dry and then repeat this again.
Now if this does not solve the issue stay posted im working on the switch after i buy the heat gun to un-stick the glue that holds the switch to the switch cylinder.